KR930011726A - Multiple serial access memories for feedback systems such as motion compensated television - Google Patents

Multiple serial access memories for feedback systems such as motion compensated television Download PDF

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KR930011726A
KR930011726A KR1019920021690A KR920021690A KR930011726A KR 930011726 A KR930011726 A KR 930011726A KR 1019920021690 A KR1019920021690 A KR 1019920021690A KR 920021690 A KR920021690 A KR 920021690A KR 930011726 A KR930011726 A KR 930011726A
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data
array
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serial output
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KR970000604B1 (en
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센 파울
에이치. 파익 우
에이. 크라우스 에드워드
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헤롤드 엠. 크리스버그
제너럴 인스트루먼트 코포레이션
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    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C7/00—Arrangements for writing information into, or reading information out from, a digital store
    • G11C7/10—Input/output [I/O] data interface arrangements, e.g. I/O data control circuits, I/O data buffers
    • G11C7/1075—Input/output [I/O] data interface arrangements, e.g. I/O data control circuits, I/O data buffers for multiport memories each having random access ports and serial ports, e.g. video RAM
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/42—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation
    • H04N19/423—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation characterised by memory arrangements
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T1/00—General purpose image data processing
    • G06T1/60—Memory management
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C7/00—Arrangements for writing information into, or reading information out from, a digital store
    • G11C7/10—Input/output [I/O] data interface arrangements, e.g. I/O data control circuits, I/O data buffers
    • G11C7/1015—Read-write modes for single port memories, i.e. having either a random port or a serial port
    • G11C7/1036—Read-write modes for single port memories, i.e. having either a random port or a serial port using data shift registers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/42—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation
    • H04N19/43—Hardware specially adapted for motion estimation or compensation
    • H04N19/433—Hardware specially adapted for motion estimation or compensation characterised by techniques for memory access
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
    • H04N19/503—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
    • H04N19/51—Motion estimation or motion compensation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
    • H04N19/61—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding in combination with predictive coding

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Image Input (AREA)
  • Dram (AREA)
  • Hydrogenated Pyridines (AREA)
  • Nitrogen Condensed Heterocyclic Rings (AREA)
  • Other In-Based Heterocyclic Compounds (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Controls And Circuits For Display Device (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Information Transfer Systems (AREA)
  • Television Signal Processing For Recording (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)

Abstract

A multiple serial access memory is provided. A dynamic random access memory (30) is addressed to input data thereto and output data therefrom. Rows of data are output from the array (50) in response to address signals (34, 36, 38) provided thereto. A plurality of serial output ports (44, 46, 48) is coupled to the output of the array for selectively latching different rows of data output from the array. The serial output ports (44, 46, 48) are clocked to output the latched data therefrom. In an illustrated embodiment, each of the serial output ports contains a shift register (62, 64, 66, ... 68) having a length equal to the width of the memory array (30). The shift register is responsive to a first timing signal (42, 52) for latching a row of data from the array (30). A second timing signal actuates the shift register to shift a row of latched data. A serial access selector (70) coupled to the shift register outputs a selected portion of the shifted data from the serial output port. The memory has particular application as the frame store for a motion compensated interframe image coding/decoding system. <IMAGE>

Description

모션보상 텔레비젼과 같은 피드백 시스템용 다중 시리얼 억세스 메모리Multiple serial access memories for feedback systems such as motion compensated television

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 모션보상 인터프레임 이미지 코딩/디코딩 시스템에 이용되는 피드백 시스템을 나타낸 블럭도.1 is a block diagram illustrating a feedback system used in a motion compensation interframe image coding / decoding system.

제2도는 제1도에 도시된 피드백 시스템의 종래예를 나타낸 블럭도.2 is a block diagram showing a conventional example of the feedback system shown in FIG.

제3도는 본 발명에 따른 다중 시리얼 억세스 다이나믹 RAM을 나타낸 블럭도.3 is a block diagram illustrating multiple serial access dynamic RAMs in accordance with the present invention.

제8도(a) 내지 제8도(c)는 메모리를 비디오 데이터의 연속적인 프레임으로 채우는 방법을 설명하기 위한 도면이다.8A to 8C are diagrams for describing a method of filling a memory with consecutive frames of video data.

Claims (11)

다이나믹 랜덤 억세스 메모리 어레이와, 상기 어레이로 데이터를 입력하고 상기 어레이로부터 데이터를 출력하기 위해 상기 어레이를 어드레스지정하는 어드레스지정수단, 상기 어드레스지정수단에 의해 제공된 어드레스신호에 응답하여 상기 어레이로부터 데이터의 행을 출력하는 출력수단, 상기 출력수단에 연결되어 상기 출력수단에 의해 출력된 데이터의 행을 선택적으로 래치시키는 복수개의 시리얼 출력포트 및, 사기 시리얼 출력포트로부터 래치된 데이터를 출력하기 위해 상기 시리얼 출력포트를 클럭제어하는 수단을 구비하여 이루어진 다중 시리얼 억세스 메모리.A dynamic random access memory array, addressing means for addressing the array for inputting data to and outputting data from the array, and a row of data from the array in response to an address signal provided by the addressing means. Output means for outputting a plurality of serial output ports connected to the output means for selectively latching rows of data output by the output means, and serial output ports for outputting latched data from a fraudulent serial output port; And multiple means for clock control. 제1항에 있어서, 상기 어레이와 작용적으로 연결되어 상기 어레이로의 억세스를 한번에 상기 시리얼 출력포트중 한개로 제한하는 타이밍수단을 더 구비하여 이루어진 것을 특징으로 하는 다중 시리얼 억세스 메모리.2. The multiple serial access memory of claim 1 further comprising timing means operatively coupled to the array to limit access to the array to one of the serial output ports at a time. 제1항에 있어서, 상기 시리얼 출력포트의 각각은, 상기 어레이의 폭과 적어도 동일한 길이를 갖고서, 타이밍수단으로부터의 제1신호에 응답하여 상기 어레이로부터 데이터의 행을 래치시키고, 상기 타이밍수단으로부터의 제2신호에 응답하여 래치된 데이터의 행을 시프트시키는 시프트 레지스터와, 상기 시프트 레지스터에 연결되어 상기 시리얼 출력포트로부터 시프트된 데이터의 선택된 부분을 출력하는 시리얼 억세스 셀렉터로 이루어진 것을 특징으로 하는 다중 시리얼 억세스 메모리.2. The apparatus of claim 1, wherein each of the serial output ports has a length at least equal to a width of the array, latching a row of data from the array in response to a first signal from the timing means, Multiple serial access, comprising: a shift register for shifting a row of latched data in response to a second signal, and a serial access selector coupled to the shift register to output a selected portion of the shifted data from the serial output port Memory. 제1세트의 워킹 데이터를 저장하기 위한 메모리와, 상기 워킹 데이타로 부터 유도된 1세트의 디스플레이데이터를 저장하기 위한 메모리를 필요로하는 디지탈 텔레비젼장치에 있어서, 다이나믹 랜덤 억세스 메모리 어레이와, 상기 어레이로 데이터를 입력하고 상기 어레이로부터 데이터를 출력하기 위해 상기 어레이를 어드레스지정하는 어드레스지정수단, 상기 어드레스지정수단에 의해 제공된 어드레스신호에 응답하여 상기 어레이로부터 데이터의 행을 출력하는 출력수단, 상기 출력수단에 연결되어 상기 출력수단에 의해 출력된 데이터의 행을 선택적으로 래치시키는 복수개의 시리얼 출력포트 및, 상기 시리얼 출력포트로부터 래치된 데이터를 출력하기 위해 상기 시리얼 출력포트를 클럭제어하는 수단을 구비하여 이루어지고, 상기 시리얼 출력포트중 적어도 한개가 상기어레이로부터 워킹 데이터를 출력하는데 사용되고, 상기 시리얼 출력포트중 적어도 다른 한개가 상기 어레이로부터 디스플레이 데이타를 출력하는데 사용되는 것을 특징으로 하는 디지탈 텔레비젼장치.A digital television apparatus comprising a memory for storing a first set of working data and a memory for storing a set of display data derived from said working data, comprising: a dynamic random access memory array and said array; Addressing means for addressing the array for inputting data and outputting data from the array, output means for outputting a row of data from the array in response to an address signal provided by the addressing means, to the output means; A plurality of serial output ports connected to selectively latch rows of data output by the output means, and means for clocking the serial output port to output latched data from the serial output port; The serial output Teujung at least one is used to output working data from said array, a digital television apparatus, characterized in that at least one other of said serial output ports is used to output the display data from the array. 제4항에 있어서, 상기 어레이와 작용적으로 연결되어 상기 어레이로의 억세스를 한번에 상기 시리얼 출력포트중 한개로 제한하는 타이밍수단을 더 구비하여 이루어진 것을 특징으로 하는 디지탈 텔레비젼장치.5. The digital television apparatus according to claim 4, further comprising timing means operatively connected to said array to limit access to said array to one of said serial output ports at one time. 제4항에 있어서, 상기 시리얼 출력포트의 각각은, 상기 어레이의 폭과 적어도 동일한 길이를 갖고서, 타이밍수단으로부터의 제1신호에 응답하여 상기 어레이로부터 데이터의 행을 래치시키고, 상기 타이밍수단으로 부터의 제2신호에 응답하여 래치된 데이터의 행을 시프트시키는 시프트 레지스터와, 상기 시프트 레지스티에 연결되어 상기 시리얼 출력포트로부터 시프트된 데이터의 선택된 부분을 출력하는 시리얼 억세스 셀렉터로 이루어진 것을 특징으로 하는 디지탈 텔레비젼장치.5. The apparatus of claim 4, wherein each of the serial output ports has a length at least equal to the width of the array, latching a row of data from the array in response to a first signal from the timing means, And a shift register for shifting a row of latched data in response to a second signal of the second and a serial access selector coupled to the shift register to output a selected portion of the shifted data from the serial output port. TV device. 제4항에 있어서, 상기 워킹 데이터는 필드 포맷과 프레임 포맷중 한개에서 그 각각의 시리얼 출력포트에 의해 상기 어레이로부터 억세스되고, 상기 디스플레이 데이터는 상기 필드 포맷과 프레임 포맷중 다른 한개에서 그 각각의 시리얼 출력포트에 의해 상기 어레이로부티 억세스되는 것을 특징으로 하는 디지탈 텔레비젼장치.5. The apparatus of claim 4, wherein the working data is accessed from the array by its respective serial output port in one of a field format and a frame format, and the display data is its respective serial in the other of the field format and frame format. And digitally access the array by an output port. 제4항에 있어서, 상기 워킹 데이타는 블럭 포맷에서 그 각각의 시리얼 출력포트에 의해 상기 어레이로부처 억세스되고, 상기 디스플레이 데이터는 텔레비젼 라인 포맷에서 그 각각의 시리얼 출력포트에 의해 상기 어레이로부터 억세스되는 것을 특징으로 하는 디지탈 텔레비젼장치.5. The method of claim 4, wherein the working data is accessed from the array by its respective serial output port in block format and the display data is accessed from the array by its respective serial output port in television line format. A digital TV apparatus characterized by the above. 제4항에 있어서, 상기 디스플레이 데이터는 현재의 비디오 프레임에 대한 화소 데이터로 이루어지고, 상기 워킹 데이터는 모션보상 차이신호로부터 현재의 비디오신호를 재구성하는데 사용되는 이전의 비디오 프레임으로부터의 화소 데이티로 이루어지며, 상기 어레이는 소정의 모션평가 검색영역을 점유하기에 충분한 워킹 데이터와 함께 상기 현재의 비디오 프레임을 저장하기에 충분한 저장용량을 갖고 있고, 상기 어레이는 연속적인 비디오프레임에 대한 데이터와, 현재의 모션 평가 검색영역을 선행하여 지나간 이전의 프레임에 대한 데이터의 일부를 겹쳐쓰기한 현재의 프레임에 대한 데이터로 채워지는 것을 특징으로 하는 디지탈 텔레비젼장치.5. The method of claim 4, wherein the display data consists of pixel data for a current video frame, and the working data is pixel data from a previous video frame used to reconstruct the current video signal from a motion compensation difference signal. Wherein the array has sufficient storage capacity to store the current video frame with sufficient working data to occupy a predetermined motion evaluation search area, the array comprising data for consecutive video frames, And the data for the current frame, which overwrites a portion of the data for the previous frame that preceded the motion evaluation search region of the digital television apparatus. N×K라인[여기서, N은 한개의 비디오 프레임에서의 라인 갯수, K는 수직변위 (DY)에 대응하는 라인 갯수와 적어도 동일한 것]의 비디오 데이터를 저장하는 프레임 스토어 메모리를 준비하는 단계와, 제2비디오 프레임의 N개의 연속적인 라인이 제1비디오 프레임의 마지막 라인의 뒤를 따라서 메모리에 기록되고, 상기 제1비디오프레임이 퍼스트-인 퍼스트-아웃방식에 따라 상기 제2비디오 프레임에 의해 겹쳐쓰기되며 상기 제1비디오 프레임이 상기 메모리에 완전히 기록되면 상기 제1비디오 프레임의 마지막 K라인이 상기 메모리에 남게 되도록, 순환방식으로 연속적인 비디오 프레임으로부터의 데이타로 상기 프레임 스토어 메모리를 채우는 단계로 이루어진 것을 특징으로 하는 최대 수평변위(DX)와 최대 수직변위(DY)를 초과하는 모션을 평가하는 모션보상기용 비디오데이터를 저장하는 방법.Preparing a frame store memory for storing video data of N × K lines, where N is the number of lines in one video frame and K is at least equal to the number of lines corresponding to the vertical displacement DY; N consecutive lines of a second video frame are written to memory along the back of the last line of the first video frame, and the first video frame is overwritten by the second video frame according to a first-in first-out manner. And filling the frame store memory with data from successive video frames in a cyclic fashion such that when the first video frame is completely written to the memory, the last K lines of the first video frame remain in the memory. Motion compensation to evaluate motion exceeding maximum horizontal displacement (DX) and maximum vertical displacement (DY) Method for storing the video data. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019920021690A 1991-11-19 1992-11-19 Multiple serial access memory for use in feedback systems such as motion compensated television KR970000604B1 (en)

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Application Number Priority Date Filing Date Title
US07/791,369 1991-11-19
US07/791,369 US5315388A (en) 1991-11-19 1991-11-19 Multiple serial access memory for use in feedback systems such as motion compensated television

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KR930011726A true KR930011726A (en) 1993-06-24
KR970000604B1 KR970000604B1 (en) 1997-01-14

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ATE174449T1 (en) 1998-12-15
AU661637B2 (en) 1995-07-27
TW225081B (en) 1994-06-11
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ATE218263T1 (en) 2002-06-15
KR970000604B1 (en) 1997-01-14
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CA2082133C (en) 2000-05-02
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